// $Id: ArtistAddController.java 399 2009-07-04 17:14:40Z huijzer $

/*    
    Aoide is a web-based music catalog using the Spring Framework.
    Copyright (C) 2009  Arjan Huijzer

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

    You can contact Arjan Huijzer by sending an e-mail to huijzer@gmail.com.
*/

package org.aoide.web.controller;

import java.util.Collection;
import java.util.Date;
import java.util.UUID;

import org.aoide.core.persistence.Artist;
import org.aoide.core.persistence.ArtistDao;
import org.aoide.core.persistence.Counter;
import org.aoide.core.persistence.CounterDao;
import org.aoide.web.validator.ArtistValidator;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.propertyeditors.StringTrimmerEditor;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

@Controller
@RequestMapping("/artistAdd.action")
public class ArtistAddController {
	
	@Autowired
	private ArtistDao artistDao;
	
	@Autowired
	private CounterDao counterDao;	
	
    @ModelAttribute("artist")
    public Artist formBackingObject() {
    	return new Artist();
    }
	
	@RequestMapping(method = RequestMethod.GET)
    public String setupForm(ModelMap model) {
        return "artistAdd";
    }
	
	@RequestMapping(method = RequestMethod.POST)
	protected ModelAndView onSubmit(@ModelAttribute("artist") Artist artist, BindingResult bindingResult) throws Exception {

		ModelAndView mav = null;
		
		// Validate the data entered in the form
		new ArtistValidator().validate(artist, bindingResult);
		
		if (bindingResult.hasErrors()) {

			mav = new ModelAndView("artistAdd");
		
		} else {
				
			artist.setCreated(new Date());
			artist.setUuid(UUID.randomUUID().toString());
			artistDao.save(artist);
	
			Counter counter = counterDao.load("artist");
			if (counter == null) {
				// Create new counter
				counter = new Counter();
				counter.setName("artist");
				counter.setValue(1);
				counterDao.save(counter);
			} else {
				Integer value = counter.getValue();
				counter.setValue(value + 1);
				counterDao.save(counter);
			}
	
			Collection<Artist> artists = artistDao.loadAll();
			
			mav = new ModelAndView("artistList", "artists", artists);
		}
		
		return mav;
	}
	
	@InitBinder
	protected void initBinder(WebDataBinder binder) throws Exception {
		binder.registerCustomEditor(String.class, new StringTrimmerEditor(false));
	}

}
